6-(4-Bromophenyl)-4,5-dihydro-3(2H)-pyridazinone

Also known as: 6-(4-Bromophenyl)-4,5-dihydropyridazin-3(2H)-one, 3(2H)-Pyridazinone, 6-(4-bromophenyl)-4,5-dihydro-, 6-(4-Bromophenyl)-4,5-dihydro-2H-pyridazin-3-one, JRH-07004, MFCD00203490

6-(4-Bromophenyl)-4,5-dihydro-3(2H)-pyridazinone (CAS 36725-37-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H9BrN2O and a molecular weight of 253.09500 g/mol. Key properties include a melting point of 167-171ºC(lit.) and a density of 1.62g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 36725-37-8
Jingsj CID: J-1184314-4
Molecular Formula: C₁₀H₉BrN₂O
Molecular Weight: 253.09500 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	167-171ºC(lit.)
Density	1.62g/cm3
Exact Mass	251.99000
PSA	41.46000
LogP	1.82760
Refractive Index	1.667

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 6-(4-Bromophenyl)-4,5-dihydro-3(2H)-pyridazinone?

The CAS number of 6-(4-Bromophenyl)-4,5-dihydro-3(2H)-pyridazinone is 36725-37-8.

What are the molecular formula and molecular weight of 6-(4-Bromophenyl)-4,5-dihydro-3(2H)-pyridazinone?

6-(4-Bromophenyl)-4,5-dihydro-3(2H)-pyridazinone has molecular formula C10H9BrN2O and molecular weight 253.09500 g/mol.

What are the upstream and downstream products of 6-(4-Bromophenyl)-4,5-dihydro-3(2H)-pyridazinone?

For 6-(4-Bromophenyl)-4,5-dihydro-3(2H)-pyridazinone, Upstream Products: 3-(4-Bromobenzoyl)propionic acid, Bromobenzene; Downstream Products: 3-(4-bromophenyl)-6-chloropyridazine, 6-(4-Bromophenyl)-3(2H)-pyridazinone.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "6-(4-Bromophenyl)-4,5-dihydro-3(2H)-pyridazinone (CAS 36725-37-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1184314-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.